[PATCH V2 7/9] mfd: ezx-pcap: use devm_*() functions

[Jingoo Han]

Use devm_*() functions to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1....@samsung.com>
---
Changes since v1:
- Use devm_free_irq()

 drivers/mfd/ezx-pcap.c |   17 +++++++----------
 1 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index b7a61f0..f83cc3d 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -403,7 +403,7 @@ static int ezx_pcap_remove(struct spi_device *spi)
        /* cleanup ADC */
        adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
                                PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
-       free_irq(adc_irq, pcap);
+       devm_free_irq(&spi->dev, adc_irq, pcap);
        mutex_lock(&pcap->adc_mutex);
        for (i = 0; i < PCAP_ADC_MAXQ; i++)
                kfree(pcap->adc_queue[i]);
@@ -415,8 +415,6 @@ static int ezx_pcap_remove(struct spi_device *spi)
 
        destroy_workqueue(pcap->workqueue);
 
-       kfree(pcap);
-
        return 0;
 }
 
@@ -431,7 +429,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
        if (!pdata)
                goto ret;
 
-       pcap = kzalloc(sizeof(*pcap), GFP_KERNEL);
+       pcap = devm_kzalloc(&spi->dev, sizeof(*pcap), GFP_KERNEL);
        if (!pcap) {
                ret = -ENOMEM;
                goto ret;
@@ -448,7 +446,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
        spi->mode = SPI_MODE_0 | (pdata->config & PCAP_CS_AH ? SPI_CS_HIGH : 0);
        ret = spi_setup(spi);
        if (ret)
-               goto free_pcap;
+               goto ret;
 
        pcap->spi = spi;
 
@@ -458,7 +456,7 @@ static int ezx_pcap_probe(struct spi_device *spi)
        if (!pcap->workqueue) {
                ret = -ENOMEM;
                dev_err(&spi->dev, "can't create pcap thread\n");
-               goto free_pcap;
+               goto ret;
        }
 
        /* redirect interrupts to AP, except adcdone2 */
@@ -491,7 +489,8 @@ static int ezx_pcap_probe(struct spi_device *spi)
        adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
                                        PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
 
-       ret = request_irq(adc_irq, pcap_adc_irq, 0, "ADC", pcap);
+       ret = devm_request_irq(&spi->dev, adc_irq, pcap_adc_irq, 0, "ADC",
+                               pcap);
        if (ret)
                goto free_irqchip;
 
@@ -511,14 +510,12 @@ static int ezx_pcap_probe(struct spi_device *spi)
 remove_subdevs:
        device_for_each_child(&spi->dev, NULL, pcap_remove_subdev);
 /* free_adc: */
-       free_irq(adc_irq, pcap);
+       devm_free_irq(&spi->dev, adc_irq, pcap);
 free_irqchip:
        for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
                irq_set_chip_and_handler(i, NULL, NULL);
 /* destroy_workqueue: */
        destroy_workqueue(pcap->workqueue);
-free_pcap:
-       kfree(pcap);
 ret:
        return ret;
 }
-- 
1.7.2.5


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